Yes, in Germany you need different licenses depending on the size and weight to fly the octocopter. Our pilot for example has a license for an octocopter with up to 5kg (about 11lbs) and an altitude of up to 100m (300feet).

If you are near the airport you need a permission from them.
In the city you have to ask the police, and of course if you film private properties you have to ask the owner.